I've towed our 34' TT with both a Suburban and an F250 CC long bed, and now the Excursion. From purely a towability perspective (we're not talking about power), the X is by far and away the worse of the three vehicles. I towed our TT for the first time with the X this past Friday and I was all over the road; almost constantly correcting for sway. Real white knuckle kinda' stuff.
I just purchased the Excursion and I immediately noticed some wander. So we're all on the same page, Ford's '04 Service Manual defines "wander" as "the tendency of the vehicle to require frequent, random left and right steering wheel corrections to maintain a straight path down a level road". I'm also aware of the fact that the X has rear end issues associated with Ford going to a mushier suspension system in order to meet the demands of the SUV market. At this point, I'm not concerned with the rear end of the truck. IMHO, the wandering issue is solely related to the front end.
The Excursion is 4WD with stock suspension and I have no plans to lift the vehicle. Assuming there's nothing mechanically wrong with any of the front end suspension components, this is my current plan:
1. Do an alignment;
2. Adjust steering gear meshload;
3. Go to either a Bilstein or Rancho shock on all four corners, and
4. Change out the stock steering stabilizer to a Bilstein or a Pro Comp or a
Rancho or a Fox or a Donahoe or a Fabtech or a ....
Not to sound hysterical, but this truck is just plain unsafe right now as a tow vehicle. We tow a lot and although my wife doesn't do too much of the driving, I certainly won't allow her behind the wheel until this problem is remedied.
Thoughts, concerns, advice?